Example

Programming the HP 16554A/ HP 16555A/HP 16555D

Mainframe Commands

Mainframe Commands

These commands are part of the HP 16500/16501A mainframe system and are mentioned here only for reference. For more information on these commands, refer to the HP 16500/16501A Programmer’s Guide.

CARDcage? Query

The CARDcage query returns a string of integers which identifies the modules that are installed in the mainframe. The returned string is in two parts. The first five two-digit numbers identify the card type. The identification number for the HP 16554A and HP 16555A/D logic analyzers is

34.A "−1" in the first part of the string indicates no card is installed in the slot.

The five single-digit numbers in the second part of the string indicate which card has the controlling software for the module; that is, where the master card is located.

12,11,−1,−1,34,2,2,0,0,5

A returned string of 12,11,-1,-1,34,2,2,0,0,5means that an oscilloscope time base card (ID number 11) is loaded in slot B and the oscilloscope acquisition card (ID number 12) is loaded in slot A. The next two slots (C and D) are empty (−1). Slot E contains a logic analyzer module (ID number 34).

The next group of numbers (2,2,0,0,5) indicate that a two-card module is installed in slots A and B with the master card in slot B. The "0" indicates an empty slot, or the module software is not recognized or is not loaded. The last digit (5) in this group indicates a one-card module is loaded in slot E. Complete information for the CARDcage query is in the HP 16500/16501A Programmer’s Guide.

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